Article 820: Community Antenna TV and Radio Distribution Systems 

Mar 1, 2007, By Mike Holt, NEC Consultant

Article 820 covers the distribution of television and radio signals via cable. This is in contrast to Art. 810, which covers the distribution of television...

Illustrated Catastrophes 

Mar 1, 2007, By Joe Tedesco, NEC Columnist

As usual, never consider the following commentary associated with these photos as a formal interpretation of the National Electrical Code (NEC). Without...

Stumped by the Code? 

Mar 1, 2007, By Mike Holt, NEC Consultant

All questions and answers are based on the 2005 NEC. Q. Does the Code require bonding around raceway knockouts for 277V or 480V feeders and branch circuits?...

Code Q&A 

Feb 27, 2007, By Mike Holt

Code Quiz 

Feb 27, 2007, By Steven Owen

Code Quiz 

Feb 13, 2007, By Steven Owen

Code Q&A 

Feb 13, 2007, By Mike Holt

AFCIs Primed to Branch Out - Take Two 

Feb 1, 2007, By Michael Eby, Editor-in-Chief

In the November 2006 issue, my viewpoint and our cover story, AFCIs on the Brink of a Home Invasion, focused on a Code change proposal to expand the use...

Article 810: Radio and Television Equipment 

Feb 1, 2007, By Mike Holt, NEC Consultant

Article 810 provides installation requirements for transmitter and receiver equipment as well as the associated wiring and cabling (Fig. 1). Article 810...

Top 50 NEC Rules 

Jan 26, 2007, By Mike Holt

Code Quiz 

Jan 26, 2007, By Steven Owen

Code Q&A 

Jan 26, 2007, By Mike Holt

Code Quiz 

Jan 12, 2007, By Steven Owen

Code Q&A 

Jan 12, 2007, By Mike Holt

What's Wrong Here? 

Jan 12, 2007, By Joe Tedesco

Hint: Bad bend or lack of protection?...

Article 800: Communications Circuits 

Jan 1, 2007, By Mike Holt, NEC Consultant

Because Art. 800 has its roots in telephone technology, it addresses telephone and related systems that use twisted-pair wiring. The telephone utility...

Illustrated Catastrophes 

Jan 1, 2007, By Joe Tedesco, NEC Columnist

As usual, never consider the following commentary associated with these photos as a formal interpretation of the National Electrical Code (NEC). Without...

Code Quiz 

Dec 26, 2006, By Steven Owen

Code Q&A 

Dec 26, 2006, By Mike Holt

Code Quiz 

Dec 11, 2006, By Steven Owen